There's a cool, full-page picture of K&R in a studio (circa '73) in the May issue of Performing Songwriter (the one with Diana Krall on the cover). It's on the last page in the "Parting Shots" section. Here's a link to the magazine's site, although you can't see the picture there.
http://www.performingsongwriter.com/
Tony
http://www.performingsongwriter.com/
Tony